HOW A CALL IS CREATED IN CELL PHONE

j¤­W¡­g¡­el HL¢V Lm

haÑj¡e pj­u j¤­W¡­g¡e Bj¡­cl ¢eLV HL¢V AaÉ¡hnL£u k¿»z°ce¢¾ce S£h­e j¤­W¡­g¡e R¡s¡ Bj¡­cl HL¢V ¢ce LÒfe¡ Ll¡J L¢WezqW¡v k¢c ­L¡­e¡¢ce HC ­j¡h¡Cm Hl ­eVJu¡­LÑ pjpÉ¡ L­l h¡ e¡ b¡­L a¡q­m Bjl¡ Qlj ¢hlš² qCzquah¡ LM­e¡ ­j¡h¡Cm Af¡­lVl­cl N¡¢mN¡m¡S J L¢lz¢L¿¹¥ Bjl¡ ¢L S¡¢e L£i¡­h L¡S L­l Bj¡­cl ¢eaÉ fË­u¡Se£u k¿»¢V?L£ L­l °a¢l qu Bj­cl HL¢V Lm?fËk¤¢š²l Qlj EvLoÑa¡u BS Bjl¡ ­j¡h¡Cm Hl HL¢V h¡Ve ¢V­f Lm Ll­a f¡l­mJ Bpm hÉ¡f¡l¢V Ha plm ­L¡­e¡ fË¢œ²u¡ euz

haÑj¡­e Bj¡­cl ­c­n c¤C dl­el ­j¡h¡Cm ­eVJu¡LÑ Q¡m¤ l­u­RzHl j­dÉ HL¢V G.S.M.A. Hhw Afl¢V  C.D.M.A. ¢L¿¹¥ Bj¡­cl ­c­n  C.D.M.A. Hl ­Q­u  G.S.M.A. HL¢V hým fËQ¢ma fÜ¢az­j¡h¡Cm ­g¡e hÉ¡hq¡lL¡l£­cl naLl¡ 85 i¡N ­m¡L fÜ¢a G.S.M.A. hÉ¡hq¡l L­lz

G.S.M.A. ­eVJu¡LÑ p¡d¡lZa ¢LR¥ S¢Vm pl”¡­jl pjeÄ­u N¢Wa,k¡­cl L¡kÑ¡hm£ J C¾V¡l­gp…­m¡ ¢e¢cÑø Ll¡ B­Rz¢e­Ql ¢Q­œ ­cM¡­e¡ B­R fËQ¢ma G.S.M.A. ­eVJu¡LÑ L£i¡­h L¡S L­lz

G.S.M.A. ­eVJu¡LÑ p¡d¡lZa 3¢V i¡­N ¢hiš² q­u L¡S L­lz¢hi¡N…­m¡ q­µR (1)­j¡h¡Cm ­ØVne (2)­hCS ­ØVne p¡h¢p­ØVj (3)­j¡h¡Cm p¡¢iÑ­pp p¤¤C¢Qw ­p¾V¡lzNË¡qL AbÑ¡v Bj¡­cl L¡­R b¡­L ­j¡h¡Cm ­ØVne h¡ ¢pj L¡XÑ k¡ ­j¡h¡Cm ­p­Vl pjeÄ­u N¢WazHC ­j¡h¡Cm ­ØVn­el p¡­b ­l¢XJ¢mwL ¢eu¿»e L­l ­hCS ­ØVne p¡h¢p­ØVjz­eVJu¡LÑ p¡h¢p­ØV­jl fËd¡Z Awn ­j¡h¡Cm p¡¢iÑ­pp p¤¤C¢Qw ­p¾V¡l ­j¡h¡Cm ­g¡e NË¡qL­cl j­dÉ Lm p¤¤C¢Qw pÇfæ L­lzHR¡l¡J,­j¡h¡Cm p¡¢iÑ­pp p¤¤C¢Qw ­j¡¢h¢m¢V jÉ¡­eS­j¾V pwœ²¡¿¹ k¡ha£u L¡S pÇf¡ce L­l,G.S.M.A. ­eVJu¡­LÑl HL¢V …l¦aÆf§ZÑ Awn q­µR Af¡­lne Hä ­jCe­VeÉ¡¾p ­p¾V¡l k¡ pjNË G.S.M.A. fË¢œ²u¡l ­pV-Bf J Hl kb¡kb Af¡­lne aaÆ¡hd¡e L­lz­j¡h¡Cm ­ØVne J ­hCS ­ØVne p¡h¢p­ØVj fl×f­ll p¡­b UM C¾V¡l­g­pl j¡dÉ­j ­k¡N¡­k¡N lr¡ L­l k¡ C¾V¡l­gp h¡ ­l¢XJ¢mwL e¡­j f¢l¢Qaz­hCS ­ØVne p¡h¢p­ØVj ­j¡h¡Cm p¡¢iÑ­pp p¤¤C¢Qw ­p¾V¡­ll p¡­b C¾V¡l­g­pl j¡dÉ­j ­k¡N¡­k¡N lr¡ L­lz

Hi¡­h pÇfæ qu HL¢V hým fËaÉ¡¢na Lmz¢L¿¹¥,H­aJ ­eVJu¡­LÑl p§raj i¥­ml SeÉ Bjl¡ ¢hlš² qC,­hQ¡l¡ ­j¡h¡Cm Hl La Lø a¡Ce¡!

SIM=Subscriber Identification Module             

ME=Mobile Equipment

BTS=Base Transceiver Station

BSC=Base & Station Controller

MSC=Mobile Services Switching Centre

HLR=Home Location Register

VLR=Visitor Location Register

EIR=Equipment Identify Register

AUC=Authantication Centre

PSTN=Public Switched Telephone Network

ISDN=Integrated Services Digital Network

CSPDN=Circuit Switched Public Data Network

j¡qj¤c¤m Bmj p¡­uj

Cä¡¢ØVÊu¡m Hä fËX¡Lne C¢¾S¢eu¡¢lw ¢hi¡N

Bqp¡eEõ¡q ¢h‘¡e J fËk¤¢š² ¢hnÄ¢hcÉ¡mu

¢WL¡e¡(h¡p¡)-46,c¢rZ ¢MmN¡yJ,2u am¡,Y¡L¡